A Record High: Global Fossil Fuel Emissions Set to Rise in 2025
A lignite power plant in Germany
Patrick Pleul/dpa/Alamy
According to the annual Global Carbon Budget report, worldwide fossil fuel emissions are projected to increase by 1.1 per cent in 2025, reaching a new all-time high. This surge in emissions is a result of the escalating consumption of hydrocarbons by humanity.
While this news is concerning, there is a glimmer of hope as emissions from China, the largest emitter globally, seem to be stabilizing. This development raises optimism that global emissions may soon reach a peak.
Corinne Le Quéré from the University of East Anglia, UK, a contributor to the report, commented, “We’re not yet in a situation where the emissions go down as rapidly as they need to tackle climate change. But at the same time, there is a lot of positive evolution with China’s and India’s emissions growing less rapidly than before.”
The report predicts that humanity will release 38.1 billion tonnes of fossil CO2 emissions this year, equivalent to the emissions produced by 9 billion petrol cars driven for a year. Despite the increasing adoption of renewables in various regions, the rise in energy demand, primarily met by fossil fuels, continues to outpace the transition to cleaner energy sources.
Since the pre-industrial era, the Earth has heated by 1.36°C. With emissions persisting at current levels, achieving the 1.5°C target set by the Paris Agreement seems nearly impossible, increasing the risks of severe climate impacts.
In a recent address to world leaders at the COP30 climate summit, United Nations Secretary-General António Guterres acknowledged that surpassing the 1.5°C threshold is now unavoidable, emphasizing the urgent need for substantial emission reductions to minimize this overshoot.
When factoring in carbon absorption by ocean and land ecosystems, global CO2 emissions have slightly decreased in 2025. However, this decline is largely attributed to the cessation of warm El Niño conditions, which had hindered carbon sequestration in vital sinks like tropical rainforests.
As temperatures rise, these ecosystems are absorbing less carbon, as indicated by a separate study linked to the Global Carbon Budget report.
Pierre Friedlingstein from the University of Exeter, UK, another collaborator on the report, noted that emissions have been growing at a slower rate this decade compared to the previous one, signifying a positive trend. He stated, “Things are looking better. If you look at the growth rate, it’s much lower now.”
An analysis by Carbon Brief revealed that China’s emissions remained steady in 2025, with a notable increase in solar power capacity offsetting rising electricity demand. Although the transportation sector saw a reduction in emissions due to the surge in electric vehicle sales, the upsurge in oil-intensive chemical and plastic production balanced out the overall emissions levels.
Furthermore, Ember, a think tank, reported a 1.1 per cent decline in fossil fuel power generation in China during the first three quarters of 2025, reflecting a significant shift in the country’s energy landscape towards renewables. India also experienced a 3.3 per cent drop in fossil fuel power generation while ramping up its investments in solar and wind energy.
For the first time since the onset of the COVID-19 pandemic, global fossil power generation, excluding transport and industrial emissions, is projected to remain stagnant in 2025, according to Ember.
